Webgraphs showing the maximum kinetic energy for electrons emitted by light incident on two different metals. For the rightmost graph, the threshold frequency is larger, as is the work function of the metal, compared to that for the original graph. Figure 27.5: A diagram of the experimental apparatus for carrying out the photoelectric effect ... WebTranscribed Image Text: 1: The following diagram shows the stopping potential vs frequency graph for a photoelectric effect exper- iment with many different materials. Rank them in order of their work-functions from smallest to largest. Cesium assium Sodium Lithium frequency a: their work-functions are all identical (same slope) b: lithium, sodium, potas- …
What is the relation between photoelectric current and frequency …
WebCalculate the work function of sodium in eV. Step 1: Write out the photoelectric equation and rearrange to fit the equation of a. straight line. E = hf = Φ + ½ mv2max → Ek (max) = hf - Φ. y = mx + c. Step 2: Identify the threshold frequency from the x … WebIts validity is based on solid experimental evidence, most notably the photoelectric effect. The basic physical process underlying this effect is the emission of electrons in metals … high mobility emissive organic semiconductor
Interpreting I-V graphs in Photoelectric effect Physics Forums
WebDec 20, 2024 · 1.6 Photoelectron Spectroscopy. Understanding the structure of an atom is essential to comprehending the photoelectric effect and interpreting photoelectron spectroscopy. Remember that an atom is made up of three subatomic particles: Protons - located in the nucleus with a +1 charge and a mass of approximately 1 amu. WebAug 21, 2024 · The work function is a correction factor for the instrument and correlates to the minimum energy required to eject an electron from an atom (see the photoelectric effect for more info, but not necessary to understand this). The work function and photon energy are known and the kinetic energy is measured by the detector. WebWell it may help to first simply consider the famous the photoelectric effect, and see how photon frequency $\nu$ is related to the photoelectron's kinetic energy, ... From the I-V graph, at a given applied voltage (between the stopping voltage and the saturation voltage), a higher frequency corresponds to a higher photocurrent. ... high mobility group at-hook 1